Malicious PDF — malware analysis report

Static analysis result for SHA-256 5087d35ae21ff289…

MALICIOUS

PDF

69.9 KB Created: 2020-04-08 11:48:39 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4a0e1e9053979ce353f29fa6db106696 SHA-1: 9808095bfb6cef8f03f4b0a8107200e0b1c9d2fc SHA-256: 5087d35ae21ff2898a7df9f80c1796985da10ba639ed2d91dff866b1555a7edf
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, contains text related to 'poetas malditos franceses' and references wkhtmltopdf, suggesting it might be a generated document. The primary attack pattern involves directing users to a farm of external PDF URLs, likely for SEO manipulation or to host further malicious content. No scripts were extracted from this sample.

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://aryanchristian.com/uploads/1/3/0/7/130739132/130739132.html#quienes+fueron+los+poetas+malditos+franceses
    • http://hiddenhillsfarmandvineyard.net/uploads/1/3/0/6/130604244/bisezafe-golixel.pdf
    • http://pedalitforward.net/uploads/1/3/0/7/130775792/26066421a.pdf
    • http://heatherwassarman.com/uploads/1/3/0/8/130874563/zevipij.pdf
    • http://clovisglassclass.com/uploads/1/3/0/9/130969423/gudizuk.pdf
    • http://mysunshinedistributors.com/uploads/1/3/0/7/130739591/db54f53b.pdf
    • http://aseatatthetables.org/uploads/1/3/0/6/130603749/wibujiluzijituz_getisixupis.pdf
    • http://brasiltv.org/uploads/1/3/0/5/130551083/908696f1f95b1c1.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e4c0.bin
d3359a487d50088d0a322e9112fbbe2f016146597c26e06d926eaef7590e466f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE4C0 11028 bytes

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